EP1344123A2 - Demarcation graphique et textuelle d'une localisation et interpretation des mesures - Google Patents
Demarcation graphique et textuelle d'une localisation et interpretation des mesuresInfo
- Publication number
- EP1344123A2 EP1344123A2 EP01990973A EP01990973A EP1344123A2 EP 1344123 A2 EP1344123 A2 EP 1344123A2 EP 01990973 A EP01990973 A EP 01990973A EP 01990973 A EP01990973 A EP 01990973A EP 1344123 A2 EP1344123 A2 EP 1344123A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- measurement
- information
- selections
- computerized system
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5009—Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/22—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
Definitions
- the invention relates to the field of measurement science and field measurements, and is generally related to the measurement, visualization, and storage of measurable characteristics of any spatially distributed group of objects or networks. Specifically, this invention relates to a method and system used to measure, record, and visualize the quantitative quality or performance metric of measurable parameters as applied to communications networks and the components and infrastructure that comprise such networks. The invention is also applicable, however, to the measurement, interpretation, visualization, and storage of the quality, performance, or observable metrics or features of any group of objects distributed in space, such as a distributed network of power cables, water pipes, heating or air conditioning systems, or groups of buildings, rooms, cars, or other entities that are located in distinct locations and which have properties that may be measured or quantified. Description of the Related Art
- active components such as base station access points (for wireless local area networks), base stations (for cellular or PCS systems), routers and switches (for wired or wireless networks), cables and conduit that connect such active items, and individual user terminals (such as mainframe or portable computers, handheld devices, Bluetooth devices, or other components (fixed or portable), that may be wired or wirelessly connected to a network) are used to send information from one place to another, and these are often difficult to physically detect.
- base station access points for wireless local area networks
- base stations for cellular or PCS systems
- routers and switches for wired or wireless networks
- cables and conduit that connect such active items and individual user terminals (such as mainframe or portable computers, handheld devices, Bluetooth devices, or other components (fixed or portable), that may be wired or wirelessly connected to a network)
- mainframe or portable computers such as mainframe or portable computers, handheld devices, Bluetooth devices, or other components (fixed or portable), that may be wired or wirelessly connected to a network
- measurements are often required at various locations, sometimes involving off-the-
- Such transmissions may be carried over wired distributed networks, over the air via wireless RF or optical networks, optical cable networks, or any combination thereof. Similar fundamental knowledge exists for other types of distributed networks, such as cooling or heating distribution networks, plumbing, structured cable or wiring, as known and practiced by skilled artisans in such fields.
- packets require an identifier that gives the address of the receiver. This address is understood by the communications network to allow the packet to be properly sent to the correct receiver. Since each packet can be transmitted separately and thus interleaved in time with packets from other transmissions, it is generally more efficient to use a connectionless transmission method when using shared network resources.
- connectionless, packet-based transmission is a file transfer between two computers on an internet protocol (IP) based, Ethernet network that both computers are attached to.
- IP internet protocol
- the file that is to be transmitted is fragmented at the transmitter into appropriate packets and labeled with the IP address, which is the identifier used by the network to forward the packet to the correct receiver.
- the packets are then sent from the transmitting computer to the receiving computer.
- the Ethernet network is capable of supporting multiple file transfers from many different computers all using the same network by controlling the flow of packets from each destination in a shared fashion.
- the receiver then assembles the packets into an exact copy of the original file, completing the transmission.
- RSSI directly reflects the quality of the connection between the transmitter and receiver.
- Signal-to-Interference (SIR) and Signal-to-Noise (SNR) are comparisons of the RSSI of the desired signal to the RSSI of other signals (i.e., interferers) or general background, spurious, thermal, or cosmic noise. These comparisons are ratios, generally measured in decibels (dB), and provides a separate perspective on the quality of the communication link between transmitter and receiver.
- Figure 1 illustrates the difference between bits, packets, and frames.
- Bits are the core of packets and frames.
- the bits are the actual message data that is sent on the communications network.
- Packets include the data bits and the packet header and packet footer.
- the packet header and packet footer are added by communications network protocols and are used to ensure the data bits are sent to the right location in the communications network and interpreted correctly by the receiver.
- the packet header and packet footer are also used to ensure that packets are sent correctly and that errors are detected should they occur.
- Frames are simply series of bits with a certain pattern or format that allows a receiver to know when one frame begins or ends.
- a probable path from relaying device to relaying device between the transmitter and the receiver can be determined so that the exact links used by the network transmissions are known. Additionally, using traceroute, the time required to traverse each individual link can be measured, and individual links that may not be functioning properly can be identified.
- Packet sniffers allow a network administrator to view the content, including header and footer information, of actual packets on a network
- tcpdump allows a user to view (or "sniff) packets that are received by a host (though not necessarily intended for that host) and display all headers that match a certain user configurable pattern.
- tcpdump is a useful tool for troubleshooting network connections because it allows the user a direct view of the exact network traffic.
- Wireless Valley Communications, Inc. has created SitePlanner®, which is capable of predicting, measuring and tracking the site-specific network performance of a data communications network in a three-dimensional computer model of a physical environment.
- SitePlanner uses a software module called LANFielderTM to measure throughput, packet latency and packet error rates for any wired or wireless network connection in any Internet Protocol (IP) data communications network.
- IP Internet Protocol
- Patent No. 5,482,050 to Smokoff et al is in the area of medical instrumentation displays.
- Smokoff et al teach measurement results that map to a settable color table, and further teach that the location of the displayed color pixels may be positioned by the user on a display device.
- the invention also teaches that a program window may be minimized into an icon when a higher priority window or an alarm is to be displayed.
- Snider et al There are clear differences between 5,553,620 to Snider et al and the presently disclosed invention. Nowhere does Snider et al teach the idea of allowing the user or a programmer to provide a customizable or selectable library of graphical icons or textual strings for the purpose of prompting the user with regard to the type or location of measurement to be performed. Instead, Snider et al provide a specific set of menu text strings that have specific medical meaning, so that the medical professional can select from a subset of potential measurements.
- Snider et al require knowledge of the medical meaning of such menu options, which is very different from the current disclosure. Snider et al do not contemplate the use of any spatial information regarding the measurement itself, nor do they contemplate the icon or text string providing any information to the user with regard to the location of the measurement.
- Greenbaum et al teach the idea of allowing the user or a programmer to provide a customizable or selectable library of graphical icons or textual strings for the purpose of prompting the user with regard to the type or location of measurement to be performed, nor does Greenbaum et al teach the idea of icons or textual strings being used to provide interpretation of measured information by an untrained or unskilled user.
- Greenbaum et al provide a specific mathematical formulation for the creation of a specific display shape to represent a large number of measurement samples and measurement parameters, whereas the current invention teaches a selectable and customizable set of graphical icons or textual strings that may be completely arbitrary and may be completely independent of the particular measurement parameter, defined solely based on a user's personal preference for each measurement.
- an icon must be positioned in a particular location on the display by a user by dragging the icon to a location that is deemed appropriate by the user, through the user's interpretation of the displayed waveform.
- the particular location on the display at which the user places the icon has a direct determination on the user's obtained measurement result.
- the invention provides for a system and method whereby measurement readings may be associated with one or more textual strings or graphical icons that have a specific meaning that allows one to understand or recall with ease the measurement type, measurement location, or measurement meaning by textual or graphical recognition based on one's desired cue or by an agreed-upon or learned symbology that may have nothing to do with the technical details of the measurement, itself.
- the invention allows, prior to an actual field measurement survey, the loading or preprogramming of textual strings or graphical icons to have particular measurement meanings, measurement instructions, or to denote particular locations or positions, without having to require the user of the invention to understand the technical details or specific attributes of the measurement data, itself.
- the invention allows a user to rapidly associate a particular collection of measurements to a particular region on a site-specific environmental model, without the need for the user of the invention to have specific knowledge of the coordinates or exact position location during the measurement survey, itself.
- the benefit of the invention is that the user (or someone else) is able to define icons or textual demarcations that allow specific instructions, measurement locations or positions, or measurement meanings to be clear from the user's understood context of the displayed icon, without requiring a site-specific model of the physical environment or requiring technical details or knowledge pertaining to the measurement to be displayed or available during each measurement.
- the present invention extends the prior art in a non-obvious way to provide wireless and wired network performance measurement, in real-time, using a novel display and storage method for the continuous logging, discrete logging, or through manual data collection, for important data communications-specific performance criteria, e.g. performance parameters or metrics, such as RSSI, SIR, SNR, Ec/Io, number of retries, throughput, bandwidth, quality of service, bit error rate, packet error rate, frame error rate, dropped packet rate, packet latency, round trip time, propagation delay, transmission delay, processing delay, queuing delay, network capacity, packet jitter, bandwidth delay product and handoff delay time.
- performance parameters or metrics such as RSSI, SIR, SNR, Ec/Io, number of retries, throughput, bandwidth, quality of service, bit error rate, packet error rate, frame error rate, dropped packet rate, packet latency, round trip time, propagation delay, transmission delay, processing delay, queuing delay, network capacity, packet jitter, bandwidth delay product and handoff delay
- the invention contemplated here allows for a technician to walk around a building, or to drive or walk throughout a campus, including in underground tunnels or between floors or in elevators, or to visit a series of buildings, so that a series of field measurements (this process is called a "survey”) can be collected, visualized, and stored for any type of distributed network of components or spatially distributed group of objects, based on known measurement techniques used to collect performance parameters such as described above.
- each measurement reading or each collection of readings, are associated with one or more textual strings and/or graphical icons that may be preset prior to the survey, or which can be selected, edited, and adjusted during the survey, or after the survey.
- the measurement readings during the survey are stored in a computer file that may be saved, displayed, printed, copied, or edited.
- the textual strings and/or graphical icons associated with each measurement reading can be used to provide information to a user of the invention on the approximate location and/or status of the network, receiver, transmitter, machine, or environment at the time the measurement reading was recorded.
- the user can use the textual strings and/or graphical icons associated with the intended measurement readings to teach or steer the user to the appropriate locations for measurement, whereby it is understood the user should conduct measurement readings at the general locations suggested by the displayed icon or graphical text.
- collected measurement readings can be displayed site-specifically overlaid onto or embedded within the map or 2D or 3D model of the environment by matching the textual strings and/or graphical icons associated with each measurement reading with the same textual strings and/or graphical icons assigned to or associated with particular regions, locations, or objects within the environmental model. Measurement readings may also simply be displayed and logged without site-specific information and without maps, by using the graphical icons or textual string designators that convey meaning.
- Figure 1 Illustration of the difference between bits, packets and frames.
- Figure 2 Example of a personal computer system
- Figure 3 Example of a computer file containing specifications for the sets of textual strings and/or graphical icons used by the invention
- Figure 5 Example of a computer file containing stored measurement readings and their associated textual strings and/or graphical icons
- the present invention contemplates a system and method that provides the ability to measure, for example, the performance of communication networks, and the ability to associate each measurement reading with one or more textual strings and/or graphical icons.
- the present invention uses the textual strings and/or graphical icons to provide a user of the invention additional insight into the general location, network status, object status, or environment status at the instance the measurement reading was recorded. Such information may also be used at a later time, when the user later visualizes or compares the field measurements with past or future measurements.
- the present invention utilizes a set of one or more textual strings and/or graphical icons from which one or more entries can be selected to be associated with a measurement reading.
- the set of textual strings and/or graphical icons that are selectable may be loaded onto the computer platform or stored in the invention by the user or by someone other than the user (who is perhaps more knowledgeable in computer programming and technical details of the invention) prior to, during, or after the field measurement survey.
- the user is then able to select one or more of the textual strings and/or graphical icons prior to, during, or after the survey and, using commands provided by the invention, associate the selected textual strings and/or graphical icons with each measurement reading.
- Sets of textual strings and/or graphical icons are stored in computer files that the present invention opens or imports and interprets.
- FIG 3 there is shown an example of a computer file used by the present invention to store textual strings and/or graphical icons that can be associated with measurement data readings.
- the example file shown in Figure 3 contains a header section 301 that provides information on the file itself, such as the creator, filename, and the date when the file was created.
- the example file shown in Figure 3 contains four sets of textual strings 302a, 302b, 302c, 302d.
- each set is denoted by a descriptor 303 that is a textual string surrounded by brackets.
- the textual strings below each descriptor 303 represent a set of textual strings.
- Any number of textual strings can be used in a given set.
- the preferred embodiment of the invention shows the number of textual string sets and/or graphical icon sets as being limited to four, it is clearly the intention of this invention that any number of such sets of icons or graphical text strings could easily be incorporated into the invention and might be desirable, so that there is a library of many different possible displayed icons and/or text strings based on particular field measurement results, or due to the fact that many different locations or positions are to be measured and must be indicated to the user through the icons and/or text strings.
- any reasonable or useful number of such textual string sets and/or graphical icon sets could be represented in the file, enabling a user of the invention to select any practical number of textual strings and/or graphical icons to be associated with each measurement data reading or location in need of measurement.
- This association between measurement readings and textual strings (or icons) may occur automatically through preprogramming of the invention, where the value of the measurement reading results in one or more textual strings or icons being associated with the reading through a mapping process that may be preprogrammed or specified by a user or programmer, or alternatively through user input, where the user of the invention selects textual strings to be associated with a particular measurement reading.
- the textual strings themselves can be any combination of letters, numerals, punctuation marks, spaces, or any other characters in any combination and length, although generally a user of the invention will select strings that have some meaning to them, and the creator or programmer of the icons or textual strings will provide contextually-meaningful items that are selectable.
- a graphical icon may be used and associated with each measurement reading.
- a graphical icon is a computerized raster or vector image file of any size, shape, or file format (e.g., Windows Bitmap, JPEG, TIFF, PCX, Windows Metafile, GIF, etc.).
- the graphical icons that may be used by the invention are not limited in any way, and may include images of geometric figures, symbols, or characters, such as shown in Figure 4a, colors, such as shown in Figure 4b, graphical symbols such as smiley faces, light bulbs, check marks, etc., such as shown in Figure 4c, and/or regions containing a certain pattern, such as shown in Figure 4d.
- digital pictures of a location e.g., a room, building, ship, or landmark
- object e.g., engine part, cable, antenna, light post, etc.
- the icons would have a known meaning to the user, so that the user can create a customized library of possible icons so that while in the field, there are certain symbols that alert the user to particular measurement readings, or which the user may select to associate with a specific measurement reading.
- the invention may be configured so that if a throughput level is above a particular threshold, a smiley face is displayed while the text of the actual measurement is stored in a file. Similarly, if interference is too great or throughput is below the benchmark set by the user, a frown face could be displayed which may have associated with it or displayed beneath or next to it a textual demarcation of the location of the measurement.
- the main dialog window of the invention 601 provides the user with immediate access to all of the functionality. Measured performance metrics, recorded from the connected measurement device are shown in the upper window 606. This provides the user with immediate information on the status of the communications network being monitored. In this case, the user can immediately see the current throughput reading of 1.54 Mbps 609.
- the sets of textual strings and/or graphical icons that have been loaded from a computer file, the preferred embodiment of which is given in Figure 3, are readily accessible in the form of pull-down lists 602, 603. Entries in a pull-down list may be selected using a mouse or other computer pointing device, or may be edited by typing new information using the keyboard or other character input device.
- each pull-down list contains textual strings denoting building floors (i.e., "FLOOR1", “FLOOR2”, etc.) and also street (i.e., “6th Street", “15th Street”, etc.).
- the other list 603 also contains textual strings representing individual rooms (i.e., "Kitchen”, "Dining Room”, etc.).
- the textual string entries, which fill the two pull-down lists 602, 603, are read in by the invention from a computer file similar to the one shown in Figure 4. That is, each pull-down list contains a single set of textual strings and/or graphical icons as defined in a computer file, an example of which is shown in Figure 4.
- the measurement reading or various data contained in the measurement reading may also be displayed using customizable icons or text strings that map to specific results.
- FIG 7 there is shown one possible configuration of the present invention.
- the invention is a software application that executes on a computer platform 701 , and example of such shown in Figure 2.
- the computer platform is small, lightweight, and portable, such as a laptop, pen computer, pocket PC, or Palm Pilot.
- any computing platform such as mainframe computers, a distributed network of computers, large display consoles, or any other computer or computing device could host the invention.
- the measurement device can report measurement readings to the computing platform in real-time, and those readings can be interpreted by the invention and used to display meaningful information to the user of the invention through the graphical display of the computing platform. In the preferred embodiment of the invention, this display appears as shown in Figure 6.
- measured data may be inputted or measured by the user who manually observes the conditions or metrics and makes a judgment or decision about the particular parameter of interest.
- the invention may be applied to let users such as real estate assessors or facilities managers to collect field data without the users having to know explicit or exact location information during the survey, yet the graphical icons and/or textual strings have embedded within them or have a correspondence to the specific location information of the particular measurement so that the measured results can be mapped on to site-specific computer databases or onto maps that show city streets, neighborhoods, parts of a campus, or any other physical location details that were not explicitly available to the user of the invention during a survey.
- This allows a user to make measurements without the need of exact, environmental computer databases or maps, while supporting display of such data on environmental databases or maps after the survey.
- the label itself may be used as an identifier of where measurement readings should be displayed. That is, measurement readings with associated textual strings that are equivalent to textual labels contained within the computer representation of the environment may be automatically displayed at the location of the textual label within the computer environment. For example, referring to Figure 9, if any measurement reading is associated with the textual string "COUNSELING ROOM 101D", it may be automatically displayed at location 907 within the computer representation shown in Figure 9 because there is an equivalent textual label at that location.
- the associations between textual labels and/or graphical icons and various locations and regions within the computer representation of the environment can be edited and changed at any time. This provides tremendous flexibility to the user, who is now able to completely control the site-specific display of collected measurement readings even though the readings themselves do not contain absolute positioning information such as a latitude-longitude coordinate or X,Y,Z coordinates.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Computer And Data Communications (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25589500P | 2000-12-18 | 2000-12-18 | |
US255895P | 2000-12-18 | ||
PCT/US2001/047704 WO2002051053A2 (fr) | 2000-12-18 | 2001-12-17 | Demarcation graphique et textuelle d'une localisation et interpretation des mesures |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1344123A2 true EP1344123A2 (fr) | 2003-09-17 |
EP1344123A4 EP1344123A4 (fr) | 2007-04-25 |
Family
ID=22970300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990973A Ceased EP1344123A4 (fr) | 2000-12-18 | 2001-12-17 | Demarcation graphique et textuelle d'une localisation et interpretation des mesures |
Country Status (10)
Country | Link |
---|---|
US (1) | US7019753B2 (fr) |
EP (1) | EP1344123A4 (fr) |
JP (1) | JP2004533665A (fr) |
KR (1) | KR20030065552A (fr) |
CN (1) | CN1311319C (fr) |
AU (1) | AU3072902A (fr) |
BR (1) | BR0116693A (fr) |
CA (1) | CA2430968A1 (fr) |
MX (1) | MXPA03005521A (fr) |
WO (1) | WO2002051053A2 (fr) |
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- 2001-12-17 US US10/015,954 patent/US7019753B2/en not_active Expired - Lifetime
- 2001-12-17 BR BR0116693-0A patent/BR0116693A/pt not_active IP Right Cessation
- 2001-12-17 JP JP2002552231A patent/JP2004533665A/ja active Pending
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Also Published As
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JP2004533665A (ja) | 2004-11-04 |
US20020077787A1 (en) | 2002-06-20 |
CN1311319C (zh) | 2007-04-18 |
WO2002051053A3 (fr) | 2002-12-05 |
BR0116693A (pt) | 2004-08-17 |
AU3072902A (en) | 2002-07-01 |
WO2002051053A2 (fr) | 2002-06-27 |
MXPA03005521A (es) | 2003-10-06 |
CN1502073A (zh) | 2004-06-02 |
US7019753B2 (en) | 2006-03-28 |
KR20030065552A (ko) | 2003-08-06 |
CA2430968A1 (fr) | 2002-06-27 |
EP1344123A4 (fr) | 2007-04-25 |
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